... measurement of steam, air, oil, water and other pressure media, which have no effect on bronze and brass ... on bronze and brassType :KP-001 (Dry Steel Case Pressure Gauge)Dial size:1.5", 2", 2.5", 3, ... 5", 4", and 4.5", 6", 8", 10",Pressure range:-30" Hg-0-10,000PSISocket:Brass bottom and back ... ) Other connection sizes available upon request. GENERAL PRESSURE GAUGE with carton steel and brass material